What should a purchase order include?

Your business and GSTIN, the vendor and their GSTIN, a PO number and date, where to deliver and by when, each item with its HSN, quantity, rate and GST, the total, and your payment terms.

Should a purchase order show GST?

It helps. When the PO shows the HSN, rate and GST you expect, the vendor’s invoice can be checked against it line by line.

Which GST applies on a purchase order, IGST or CGST and SGST?

It depends on the vendor’s state and the place of supply. For goods that move, that is where delivery ends. Different states: IGST. The same state: CGST and SGST.

Can I claim input tax credit on a purchase order?

No. You need the vendor’s tax invoice or debit note, and you must have received the goods or services.

What is the difference between a purchase order and an invoice?

You send the purchase order, to ask for goods at agreed prices. The vendor sends the invoice, to bill you for what they supplied. Only the invoice is a GST document.

Is what I type saved or sent anywhere?

No. The PO is made in your browser and nothing is sent. Your own details are kept on this device only if you tick “Remember my details”.

Free Purchase Order Generator and Format (Excel)

Q: Can PrimoERP match purchase orders to bills?

Yes. In PrimoERP every bill is matched to what you ordered and what arrived, so you pay for what you got.

Make your purchase order

See the document

Document

PO number

Your own series, such as PO/26-27/0091.

PO date

Deliver by (optional)

Your business (buyer)

Logo (optional)

Logo

Shown on the document only. It stays in this browser tab.

Name

Address

GSTIN

15 characters. The format and check digit are checked here.

State

Phone (optional)

Email (optional)

Your name, address, GSTIN, contact and bank details are kept in this browser only. Untick to forget them.

Vendor (supplier)

Name

Address

GSTIN

15 characters. The format and check digit are checked here.

State

Deliver to

Name (optional)

Address

State

Place of supply

Where it differs from your state, IGST applies instead of CGST and SGST.

Items

Item 1
Description
HSN/SAC
Qty
Unit
Rate (₹)
Disc. %
GST %
Cess %
Line total₹2,05,320.00
Item 2
Description
HSN/SAC
Qty
Unit
Rate (₹)
Disc. %
GST %
Cess %
Line total₹1,35,992.64

Totals and notes

Payment terms (optional)

Terms and conditions (optional)

Notes (optional)

Before you send it

Done: PO number
Done: Date
Done: Your business name
Done: Vendor’s name
Done: A description on every item
Done: A rate on every item
Done: A GST rate on every item
Done: Deliver by: on or after the PO date
Done: Delivery address with its state
Done: GSTINs look right and match their statesGSTIN format

Every field the rule asks for is filled in.

Total

₹3,41,312.64

Taxable value: ₹2,89,248.00
GSTIGST: ₹52,064.64

Rupees Three Lakh Forty-One Thousand Three Hundred Twelve and Sixty-Four Paise Only

Worked out in your browser. Nothing you type is sent or saved, unless you tick “Remember”.

Opens your browser’s print window. Choose “Save as PDF”.

An .xlsx file with live formulas and spare rows, to use as a template.

Kovai Pump Components

41, Avinashi Road, PeelameduCoimbatore 641004

GSTIN: 33AAKCT9876M1ZD

State: 33 · Tamil Nadu

[email protected]

Purchase order

PO number: PO/26-27/0091
PO date: 17 Oct 2026
Deliver by: 10 Nov 2026
Place of supply: 33 · Tamil Nadu

Vendor

Shakti Castings

Survey 212, Shapar Industrial AreaRajkot 360024

GSTIN: 24ABCPM5678K1ZA

State: 24 · Gujarat

Deliver to

Kovai Pump Components, Unit 2

SF 112, SIDCO Industrial Estate, KurichiCoimbatore 641021

State: 33 · Tamil Nadu

#	Description	HSN/SAC	Qty	Rate	Disc.	Taxable value	IGST	Total
1	Cast iron pump casing, grade FG 260, machined	8413	120 NOS	1,450.00		1,74,000.00	18%31,320.00	2,05,320.00
2	Bronze impeller, 150 mm	8413	120 NOS	980.00	2%	1,15,248.00	18%20,744.64	1,35,992.64

Amount in words

Rupees Three Lakh Forty-One Thousand Three Hundred Twelve and Sixty-Four Paise Only

Payment terms

45 days from receipt of the goods and a correct tax invoice.

Terms and conditions

Goods must match the drawing and grade above. Quote this PO number on your invoice and delivery challan.

Amount: 2,91,600.00
Less discount: −2,352.00
Taxable value: 2,89,248.00
IGST: 52,064.64
Total: ₹3,41,312.64

The rules behind the figures.

No GST rule sets a purchase order’s format. These decide the tax on it, and what you need from the vendor.

On a purchase the vendor is the supplier. The supply is inter-state when the vendor’s location and the place of supply are in different states or union territories.
Source: IGST Act 2017, sections 7 and 8 (CBIC), checked 17 Oct 2026
Where goods move, the place of supply is where the movement ends for delivery to the recipient.
Source: IGST Act 2017, section 10(1)(a) (CBIC), checked 17 Oct 2026
The vendor’s tax invoice must show your name, address and GSTIN, since you are registered.
Source: CGST Rules 2017, rule 46(d) (CBIC), checked 17 Oct 2026
It also shows the HSN code, the taxable value after discount, and the rate and amount of each tax.
Source: CGST Rules 2017, rule 46(g), (k)–(m) (CBIC), checked 17 Oct 2026
HSN needs 4 digits with aggregate turnover up to ₹5 crore in the preceding year, and 6 digits above that, from 1 April 2021.
Source: Notification 78/2020-Central Tax (GST Council), checked 17 Oct 2026
A discount given before or at the time of supply is left out of the value, if it is recorded on the invoice.
Source: CGST Act 2017, section 15(3)(a) (CBIC), checked 17 Oct 2026
To claim input tax credit you need the tax invoice or debit note, and you must have received the goods or services.
Source: CGST Act 2017, section 16(2)(a), (b) (CBIC), checked 17 Oct 2026

One purchase order, line by line.

120 pump casings and 120 impellers at 2% off, ordered from a foundry in Rajkot for delivery to a plant in Coimbatore.

Pump casings, 120 × ₹1,450: 1,74,000
Impellers, 120 × ₹980less 2%: 1,15,248
Taxable value: 2,89,248
IGST at 18%Gujarat to Tamil Nadu: 52,064.64
Order total, ₹: 3,41,312.64

The vendor is in Gujarat and the goods go to Tamil Nadu, so the whole 18% is IGST. In words: Rupees Three Lakh Forty-One Thousand Three Hundred Twelve and Sixty-Four Paise Only.

An illustration: the names, addresses and GSTINs are made up, and the 18% rate is for the example only. Check the rate with your vendor.

What it does not do.

A purchase order is your offer to buy. These are the parts it doesn’t cover.

Input tax credit
A PO isn’t a tax document. Credit comes from the vendor’s tax invoice, once the goods arrive.
Input tax credit needs a tax invoice or debit note from a registered supplier, and the goods or services received.
Source: CGST Act 2017, section 16(2)(a), (b) (CBIC), checked 17 Oct 2026
Imports
Goods bought from abroad carry IGST at customs. The generator’s split goes by Indian states only.
Goods imported into India are an inter-state supply until they cross the customs frontier.
Source: IGST Act 2017, section 7(2) (CBIC), checked 17 Oct 2026
Tax on reverse charge
Where you pay the GST instead of the vendor, the PO still shows the tax, but doesn’t say who pays it.
Matching the bill
The generator doesn’t check the vendor’s invoice against the PO and the goods received. Do that before you pay.
Your orders, kept
Nothing is saved, so there is no list of open orders and no next number. Download each one you send.

Orders that check the bill for you.

In PrimoERP every bill is matched to what you ordered and what arrived, so you pay for what you got.

Purchase managementRequests, supplier quotes, purchase orders, deliveries and bills in one place.Read more Inventory managementStock in, stock out and between warehouses, with quantity and value on one record.Read more GST accounting softwareEvery invoice and bill carries its GST, split into CGST and SGST or IGST.Read more Construction ERPSite purchase requests approved before anyone buys, with the order, delivery and bill linked.Read more

Purchase order questions people ask.

1.

Is a purchase order mandatory under GST?

No. GST law doesn’t ask for a purchase order or set its format. It asks the vendor for a tax invoice, and you need that invoice and the goods to claim input tax credit.

— the PrimoERP team

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Purchase order generator with GST and delivery terms.

Make your purchase order

Total

The rules behind the figures.

One purchase order, line by line.

What it does not do.

Input tax credit

Imports

Tax on reverse charge

Matching the bill

Your orders, kept

More invoices and documents tools.

Purchase order questions people ask.

Is a purchase order mandatory under GST?

What should a purchase order include?

Should a purchase order show GST?

Which GST applies on a purchase order, IGST or CGST and SGST?

Can I claim input tax credit on a purchase order?

What is the difference between a purchase order and an invoice?

Is what I type saved or sent anywhere?

Can PrimoERP match purchase orders to bills?

Come for a free ERP demo. We'll show you your business on one screen.